RE: [U2] Unix nfiles & phantoms

2008-11-18 Thread John Jenkins 
Phantoms (and also Connection Pool licenses) are still concurrent UniVerse
sessions - so in calculating any system-wide parameters for the Operating
System you should account for all processes including PHANTOM and CP usage.
 
If you use VERY large numbers of PHANTOMS this is something you need to be
very aware of indeed.

On per-user parameters of course the same does not apply.

Regards

JayJay
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[U2] Unix nfiles & phantoms

2008-11-17 Thread Norman, David (SAAS) 
G'day,
We recently had an issue with nfiles on our HP-UX 11i (UV10.0.16)
system, where we hadn't been increasing nfiles after adding extra
UniVerse users and were getting close to the nfiles limit. We've now
adjusted nfiles accordingly, but realised we don't know whether phantoms
should be taken into account. The old VMARK Technical Bulletin 74-107
"Maximising Performance for UniVerse Systems" states "For file
configuration, you must set NFILE (HP-UX = nfiles) to greater than the
expected number of concurrent UniVerse users times the value of NOFILES
(HP-UX = maxfiles)" but doesn't make any mention of phantoms. Should we
add the number of permanent phantoms to the number of UV licences to
work out what nfiles should be ??

Thanks,

David Norman
Senior Software Engineer - SA Ambulance Service

ICT Services
SA Health
Government of South Australia

Box 3, GPO
Adelaide, South Australia 5001
*+61 8 8274 0384
* fax +61 8 8271 4844
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